1989 Bonneville LE - Service Engine Soon LIght Code 42 - Page 3 - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat

1987-1991 Parley with regards to your 1987 to 1991 Bonneville, Olds 88 or Buick Le Sabre Please use General Chat for non-mechanical issues, and Performance and Brainstorming for improvements.

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Old 03-30-2005, 12:36 AM   #21
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Seems very reasonable. The ICM and coilpack upgrade is a good investment even if that isn't the problem. Just make sure that you get the Delco unit on there and not another Magnavox.
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Old 03-31-2005, 09:27 PM   #22
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Well I ordered the ICM and coils. Should be here shortly. Bonne kept dying on me and won't even idle now, before it was just idling rough. NAturally when I was at the dealer with my other car for oil service etc.., I checked on this for the ol' Bonne....not going to get it there..Never understood why people actually pay that kind of money for common parts.......I'm grateful for ebay and the net....hehehhe....
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